Pipe-cutter.



PATENTED MAR. 17, 1908.

R. L. THOMAS.

PIPE CUTTER.

APPLICATION FILED OGT.3, 1907.

2 SHEETS-SHEET 1.

-fiz0ezzf0;

PA-TENTED MAR. 17, 1908.

R. L. THOMAS. PIPE CUTTER.

APPLICATION FILED 0013,1907.

2 SHEBTSSHEET 2.

Qkg

i Rx a QN W KN is N MVW KM m 0 r 4. H I. 17/" 1 i lluv fnaezz for j. 2% 0 771 a LS 'Z0z95 LSkses/ gm w UNITED STATES PATENT OFFICE.

ROY L. THOMAS, OF SAN MARCOS, TEXAS.

PIPE-CUTTER.

To all whom it may Concern.

Be it known that 1, Roy L. THOMAS, a citizen of the United States. residing at San Marcos, in the county of Hays and State of Texas, have invented new and useful Imrovements in Pipe-Cutters, of which the ollowing is a specification.

This .invention relates to pi e cutters, and the object thereof is to provir e a pipe cutter n the manner as hereinafter set forth which 18 adapted to operate on various sizes of pipe, whether the pipe lie in vertical, horizontal or any angular position.

A further object of the invention is to pro vide a pipe cutter in the manner as herei1iafter set forth which can be used in narrow or otherwise cramped places, and without the necessity of disturbin' the bearin s for the pipe or disconnecting tire pipe coup ings.

A further object of the invention is to pro vide a pipe cutter in the manner as hereinafter set forth with means whereby the cutter can be mounted upon the pipe section intermediate its ends sons to overcome the inconvenience of ,mounting the cutter on the pipe from one end thereof.

A further object of the invention is to provide a pipe cutter in a manner as hereinafter set forth with means whereby the cutter can be rotated .or oscillated when making the out.

A further object of the invention is to provide a pipe cutter which shall be simple in its construction, strong, durable, efficient in its use, conveniently mounted upon the pipe section for cutting, and comparatively inex- I pensive to manufacture.

With the foregoing and other objects in view, the invention. consists of the novel construction, combination and arrangement of parts hereinafter more specifically described and llustrated in the accompanying drawings, wherein is shown the preferred embodiment of the invention, but itis understood. that changes, variations and modifications can be resorted to which come within the scope of the claims hereunto appended.

In describing the invention in detail, reference is had to the accompanying drawings, wherein like reference characters denote cor responding parts throughout the several views and in which,

Figure 1 is an elevation looking towards one side of the pipe cutter. Fig. 2 is a like I view looking towards the other side of the pipe cutter.

Fig. 3 is a section on line 33,

Fig. 4. Fig. 4 is a section on line 4-4, Fig.

Specification of Letters Patent.

Application filed October 3, 1907.

Patented March 17', 1908.

Serial No. 395,801.

3, and El 5 is a perspective view of the cutter disc carrier.

Referring to the drawings in detail, 6 denotes a hollow cylindrical head having its inner face cut away to form an annular seat 7 upon which is mounted the cutter disk carrier 8 which will be hereinafter more specifically referred to. The head 6 is cut away as at 9 to form an opening for a purpose to be hereinafter referred'to and the said head 6 is furthermore provided with a vertically extending neck 10 provided with interior threads as at 11 and communicating at its bottom with an opening 12 which extends throu h the head 6 and is of less hamster than t 1e inner diameter of the neck'lO, form- 7 eachof said springs 15 bearing upon the head 17 of a pin 18 which extends through the head 6 and has the inner end thereof beveled as at 19. The pins 18 constitute dogs and cooperate with the cutter disk carrier for a pur 056 to be hereinafter referred to. Exten ing throu h the neck 10 'and adapted to extend'throug the opening 12 is a shank 20 carrying at its outer end a handle as at 21 and having its inner end reduced as at 22. The reduced inner end 22 terminates in a s uared rotuberance 23, the function of which wil be hereinafter referred to. The shank 20 is also provided with a boss 24 at the u per end of the reduced portion 22. Seate against the boss 24 is the lower end of an exteriorly screw-threaded sleeve 25 having an enlarged outer end 26. The sleeve 25 is adapted to engage with the threads 11 so as to retain the shank 20 in position within the neck 10. Surrounding the reduced portion 22 of the shank and interposed between the boss 24 and a washer 27 which is mounted uqon the seat 13 is an expansible s ring 28, tlie function of which is, when thes eeve 25 is screwed outwardly, to force the shank outwardly. The washer 27 is provided with a tooth 29 which engages in a groove 30 formed in the reduced portion 22 so that when the shank is rotated the washer will be "carried therewith. nected from the shank, but during the rotor The spring 28 is discontion of the shank it turns as a whole there with. Secured to one side of the head 6 by the hold-fast devices 31-is a split rin 32 for retaining the carrier 8 Wltllln the head 6.

The split ends the wells oi the opening in the head c.

The carrier 8 which is mounted in the head 6 and retained therein through the medium of the ring 32 in. connection wit the seat 7 is formed centrally thereof win a. circular opening which" opens into at transversely eXi-enoiug opening 35, the latter communi-v cating with the opening 9. The openings 9 and 3s permit, when the wall 3610f the opening 35 is iiush with the well 33 of the opening 9, of the mounting of the pipe cutter upon the pipe section, the pipe cutter be shaped groove 42, which constitutes clearcutter disk 4 .1 when block within the opening 8? or removed from opening. li iametricalt opposite the opening 37 the carrier 8 formed with a recess 43 which communicates with an opening the latterterininating the opening 12. The opening oi.

ances for the 38 is shifted ss diameter than the recess 4- orniing' the by a shoulder Arranged within. the recess having a bifurcated 43 is a-sliiftable block 46 end. 47 in which is rotatably supported through the medium of a pin 48 a cutter dislr so. The block .6 is furthermore provided with a screw-breaded socket-47* with W! onengages a screw-threaded shittable member 47 for the block 46L The member fl is formed with a reduced upper end 4', of a diameter as to fit into the opening reduced 47" is peripherally grooved as at 50 and has :3, square recess 51 in its topnvhich recess adapted to receive the protuberance 23. The member 47 is rotatably secured in the carrier 8 through the medium of a pin 52 which extends through the carrier 8 seated within the groove 50. The outer wall of the opening 37 is formed with an elongated slot 53 and at one side of slot 53 the corrier is provided with an adjustment scale Fi l. throu 'h the slot is clamping screw 55 which also extends through an opening formed in the blocl; near its out I end end said s :1 w 55 has its lower end 56 to in one of the recesses 57 wire the block 38 is adj sted. lviounted upon t screw 's a washer u- From the 1312A? screw 55, it

the n 32 are flush with 37 which communicates with the The and is vinittently shifting the carrier 'usted position. The slot 53 provides a means whereby the screw 55 can be shifted. at one side is formed with an which is toothed as at 59 or" which are The carrier 8 annular flange 58 to form a ratchet, the teeth adapted to be engaged by the pins 18, one ofwithin the head 6 when the shank 20 is with drawn so that the protuberance 23 is moved clear of the recess 51. The moving of the shank 20 so that the protuberance 23 will be shifted clear of the recess 51 is bad by unscrewing tie sleeve 25, consequently releasing the tension upon the spring '28, the latter expanding, and such action will automaticclly force the shank 20 outwardly so that the protuberance 23 will not engage the recess 51 the carrier will be free to allow oi the shifting toe-reef. When the cutter is used as whet rm f; be termed a ratchet cutter and it is desired to shift the cutter disk 49 inwerclly against the pipe, the operator forces the shank 2'0 inwardly until the protuberance 23 a in the recess 51 and then by turning shank fill, it will be evident that the member 47* will be rotated end'consequently the block will be forced inwardly carrying the cutter disk 49 therewith. L

Yl hcn it is desired to-lo'clr the parts of the cutter together so that it will be used as what. may be termed a rotary cutter, the sleeve 25 is screwed home, which forces the shank 2O inwer ly so that 23 will engage in the recess 51. If the head 6 be shifted, it evident that the shank will cause the carrier to move in unison with the head, Now if it be desired to use the device as a ratchet cutter, the sleeve 25 is slightly withdrawn, such action allowing the S'Qlh 0 .r- 28 to come iiito play and force the reduced portion of the shank and protuberance 23v damped into position through the medium o'l tire screw Furthermore, it is not necffliicll pos tioning the cutter upon the pipe section to remove the block 38 and cutter L be slid upon the pipe section through the 3 liun oi. the openings 9 end 35. Provi o whether the wclls 33 snd fio are in aline to enable the convenient positiont s 1811c 520 file the protuberance v disks 41' d'slrs ll, owing to the fact that the cutter ion is made to readily determine as ing of the cutter upon the pipe section by providing the carrier 5 with an indication (it) which is adapted to register with an indication 61 provided upon the head 6. The indications 60-61 may be in the form of in dentations or other suitable means.

It is evident from the foregoing description taken in connection with the accompanying drawings that a pipe cutter is set up which will enable the use thereof in narrow or other Wise cramped places when sutlicient space is not provided for rotating the cutter as the cutter can be so adjusted that it can be oper; ated in an oscillatory manner to perl'orni its cutting function and that during the opera.- tion of the cutter one of the cutter disks can be conveniently adjusted without necessitating the discontinuing ol' the cutting operation and it is thought that the many advantages in such manner of setting up a pipe cutter may be readily uiulerstood.

What I claim is 2- 1. A pipe cutter comprising a head, a carrier mounted therein and provided with a. ratchet, an adjustable block mounted in the carrier, a cutter disk rotatably mounted in the block, a pair of cutter disks mounted in the carrier and'arranged diametrically opposite said cutter disk, an adjustable support-- ing means for said pair of cutter disks, an adiustable handle for oscillating said head, means carried by and extending through the head and engaging the ratchet for intermittently rotating the carrier during the oscillating of the head, and means operated by the handle for adjusting said block whereby said cutter disk can be shifted to\ 'ards the pair of cutter disks.

2 A pipe cutter comprising a head, a car rier mounted therein and provided with a ratchet, an adjustable block mounted in the carrier, a cutter disk rotatably mounted in the block, a pair ol cutter disks mounted in the carrier and arranged diametrically opposite said cutter disk, an adjustable supporting means for said pair of cutter disks, an adjustable handle for oscillating said head, means carried by and extending through the head and engaging the ratchet for intermit tently rotatin the carrier during the oscillating of the mad, means operated by the handle for adjusting the block whereby said cutter disk can be shifted towards the pair of cutter disks, and means whereby said pair of cutter disks can be adjusted towards said single cutter disk.

3; A pipe cutter comprising a head provided. with an opening, a carrier mounted in the head and having a centrally arranged opening terminatin in an opening adapted to communicate with the opening in the head whereby the carrier can be positioned upon a pipe section, an adjustable cutter disk mounted in the carrier, a air of adjustable cutter disks mounted in t 1e carrier dian'ietriealiy i l l tently rotatable opposite said single cutterdisk, means whereby silltlsltlglt) cutter disk and said pair oi cutter disks can be adjusted towards each cates with the opening in the head, said open-- ings providing means whereby the cutter can be slid upon the pipe section at a point intermediate the ends thereof, an adjustable cut1- ter disk mounted in the carrier, a )air of adjustable cutter disks mounted in the carrier, means whereby said single cutter disk can be adjusted during the oscillation. of the head, means for intermittently rotating said carrier during the oscillation of the head, and means whereby the carrier can be locked with the head, causing thereby'the moving thereof in unison.

5. A pipe cutter embodying a shiltable carrier, a cutter disk mounted therein, said car rier rovided with an opening, one wall of whie i is formed with a series of recesses and the other wall with a slot, an adjustable block mounted in said opening, a pair of cutter disks rotatably mounted in the block, and a clamping screw extending thr ugh the slot and block and engaging in, one of said recesses for fixing said block in its adjusted position. i

6. A pipe cutter embodying an intermit tently rotatable carrier provided with openings, an oscillatory head supporting the carrier and having an opening comnmnicatiug with thev openings of the carrier, an adjust able handle fo oscillating the head. an ad justable cutting means mounted in the car rier, means whereby said cutting means can be adjusted by the handle, and a oair of pins carried by and extending through the head and engaging with the carrier for intermittently rotating it during the oscillation of the head, one o't' said pins constituting means to rotate the carrier when the other pin is passing the o )ening in the carrier and an adjust able duplex cutting means mounted in the carrier.

7. A pipe cutter embodying an intermitrarrier provided with openings, an oscillatory head. supporting the ear rier and having an opening communicating with the openings of the carrier, an adjustable handle oscillating the head an adjustable cutting means mounted in the carrier, means whereby said cutting means can be adjusted by the handle, an adjustable duplex cutting means mounted in the carrier and a hair of pins carried by and extending ebie handle for oscillating the head, en ed' 15 through the head and engagmg mm the cerjusmble euttmg means mounted'm the earrier for intermiitentlyrotating it during the. rier, means whereby said cutting means can oselllatmn of the head one of smd plus 0011- be adjusted by the handle, and e cubtmg stituiiug means to waste the carrier when means mounted in the carrier and opposing the other pin is siug the opening in the l'said adjustable cutting means; 20 -0a-Z1i1, and means whereby-the carrier sen In testimony whereof I have hereunto set; be locked to the head causing themoving of my hand in presence of two subscribing Wit- With the openings of the earner, an adjustsaid parts in unison. messes.

. A L, g 1 8. A pipe eutuer e1uh0d lug an gnuermlt 1 ROY L T1 LOMAS' fluently lOUl-tfibiG cerner provlde-d wlth open- W V i gs, en oscxhetory head supportmg the car- VI'ItHGSSQSZ ner and havmg an opening eommunicatlng N. L. BOGAN,-

CHAS. S. HYER. 

